<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{
    private $_id; 
        /**
	 * Authenticates a user.
	 * The example implementation makes sure if the username and password
	 * are both 'demo'.
	 * In practical applications, this should be changed to authenticate
	 * against some persistent user identity storage (e.g. database).
	 * @return boolean whether authentication succeeds.
	 */
	public function authenticate()
	{
		/*$users=array(
			// username => password
			'demo'=>'demo',
			'admin'=>'admin',
		);
		if(!isset($users[$this->username]))
			$this->errorCode=self::ERROR_USERNAME_INVALID;
		elseif($users[$this->username]!==$this->password)
			$this->errorCode=self::ERROR_PASSWORD_INVALID;
		else
			$this->errorCode=self::ERROR_NONE;
		return !$this->errorCode;*/
                
                $user = Users::model()->findByAttributes(array(
                    'username'=>  $this->username));
                
                if($user===NULL){
                    $this->errorCode=  self::ERROR_USERNAME_INVALID;
                } else {
                    if($user->password!==$user->hashPassword($this->password)){
                        $this->errorCode=  self::ERROR_PASSWORD_INVALID;
                    } else {
                        $this->_id = $user->id;
                        $this->errorCode=  self::ERROR_NONE;
                    }
                }
                return !$this->errorCode;
	}
        
        public function getId() {
            return $this->_id;
        }
}